Trilobita

Chasmops McCoy, 1849

Selection of related publications
Rõõmusoks, A. 2000. The new trilobite genus Valdariops from the Harju Series (Upper Ordovician) of Estonia. Proceedings of the Estonian Academy of Sciences. Geology 49, 1, 28-43.
Rõõmusoks, A. 1953. New data on the Ordovician trilobite genus Chasmops of Estonia. Loodusuurijate Seltsi Juubelikoguteos, pp. 397-413.